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        Four of Thiokol's Castor® IVA solid rocket motors help launch a Lockheed 
        Martin Atlas IIAS from Launch Complex 36B at Cape Canaveral Air Force 
        Station. The Castor IVA strap-on motors give the Atlas IIAS a 20 percent 
        greater payload capacity than any other Atlas launch vehicle. The Atlas 
        IIAS has successfully placed all of its national and international payloads 
        on orbit. 
      On August 31, 2004 the last of the original Atlas-Centaur boosters powered 
        by Rocketdyne MA-5A engines launched the secret National Reconnaissance 
        Office NROL-1 spacecraft into orbit. It marked the end of an era in Atlas 
        launch vehicles. 
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